US5451157A - Machine for manufacturing objects made of plastic material by means of thermoforming - Google Patents
Machine for manufacturing objects made of plastic material by means of thermoforming Download PDFInfo
- Publication number
- US5451157A US5451157A US08/157,934 US15793493A US5451157A US 5451157 A US5451157 A US 5451157A US 15793493 A US15793493 A US 15793493A US 5451157 A US5451157 A US 5451157A
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- US
- United States
- Prior art keywords
- die
- machine
- sector
- stage
- accordance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims abstract description 12
- 239000004033 plastic Substances 0.000 title claims abstract description 10
- 238000003856 thermoforming Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title description 12
- 239000002985 plastic film Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims description 23
- 238000000465 moulding Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000012809 cooling fluid Substances 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 1
- 230000032258 transport Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/44—Removing or ejecting moulded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/18—Thermoforming apparatus
- B29C51/20—Thermoforming apparatus having movable moulds or mould parts
- B29C51/22—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis
- B29C51/225—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis mounted on a vacuum drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/007—Using fluid under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/46—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles using fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/20—Molding plants
- Y10S425/201—Diverse stations
Definitions
- the principal object of the present patent of invention is a machine for manufacturing objects made of plastic material by means of thermoforming, especially those objects that can be discarded immediately after their use, such as glasses, bowls, wide-mouth containers for foods and the like.
- the present invention presents, as a novelty, a special means for holding dies, by means of which it is possible to simultaneously carry out various stages of the manufacturing process that the machine performs.
- the present invention protects a machine of the type indicated in the above paragraph, whose structural characteristics are clearly distinguishable from other machines of the same purpose, and as a result, the machine leads to an increase in the production capacity by simultaneously carrying out various stages of the manufacturing process.
- thermoforming Other machines for manufacturing objects made of plastic material by means of thermoforming are known. In general, they are machines which have a coil containing a continuous sheet of plastic material, which is pulled in order to make it pass through a heating zone which is determined by suitably arranged heating furnaces; then, under these conditions, the sheet is made to face a performing and molding zone, where it is inserted between preformed components which face respective forming dies for molding. These prior-art machines then operate by cooling, die-forming and subsequent removal and expulsion of each of the thermoformed objects from the die.
- thermoforming is produced in one station and the die-forming is performed in another subsequent station in order to then remove from the mold and stack the objects which are already formed and die-formed at this same station, at another subsequent station or outside of the system.
- the machine uses a set of two dies: one die for thermoforming and another die for die-forming; molding is performed in the first station, and die-forming is performed in the second station.
- the advantage in this case is that dies with three or more rows can be used. It so happens that the molded objects, still without die-forming, leave the molding die to enter the die-forming die, and imprecisions in the die-formed edges of the objects are produced there, which lead to rejection.
- the disadvantage which is prominent in both cases is the limitation of production which causes delay times in the machines in each of the "stations" stages of the process.
- the stations consist of 1) the time for feeding the continuous sheet until it is arranged in the thermoforming and molding sector; 2) the preforming time; 3) the thermoforming time; 4) the delay time during the process for cooling the molded objects; 5) the time which passes for the die-forming; 6) the time which passes for the expulsion of the pieces and their stacking.
- the device which is the reason for the present application, is based on a system that is integrated by a die-holding wheel and a central axis of rotation which, when combined, produce the desired effect, which is specified as follows: the wheel begins to rotate on its axis at a predetermined moment and coinciding with the position of the material, in the form of a sheet, on the die, with its entry, a vacuum and/or air valve is activated, which causes the material superimposed on the die to be suctioned and/or compressed (respectively) against the die, the material thus receiving a new shape.
- the die passes through various stations, namely: 1) molding sector (defined in the above paragraph); 2) cooling station, the water enters through an opening to the cold water chamber 106, which is connected to the cooling inlet of the die A, this is a continuous process with the object as the die is always cold; 3) when the piece formed recovers its rigidity, and it is ready to be removed from the mold, a device is operated which disconnects the vacuum and/or air and/or compression valve, actuating the valve 105 which permits the air, to bring about the expulsion of the formed piece.
- a die-forming system can be linked up in this station in order to separate the formed piece form the rest of the plate, or else the same may be connected at another pint (inside or outside of the machine) with the above-mentioned object.
- the machine according to the present patent of invention has a principal operational advantage, the feature that it is not necessary to delay the ending of one cycle before beginning with the next cycle. That is, the machine according to the present invention is equipped to carry out all of the stages of the process simultaneously, without delay times between stages.
- This principle of operation can be put into practice as a result of the structural characteristics of the machine according to the present invention which stands out because it includes a rotary die.
- This rotary die is located obliquely to the feed direction of the machine and has preferably at least four die-holding faces which are identical to one another and are formed to face, in succession, the means or stages which are involved in the process that the machine carries out.
- the above-mentioned simultaneity of the operations is performed while the dies arranged on one of the faces of the die-holding rotor are in the operation of thermoforming the objects, the dies arranged on the subsequent face make it possible to carry out the process for cooling these objects which were molded in the previous stage; simultaneously, on the next face, the die-forming of the already cooled objects is carried out; simultaneously, on the next die-holding face, the expulsion operation is carried out for the stacking of the formed objects.
- FIG. 1a is a lateral, schematic view of the machine according to the present invention.
- FIG. 1b is an enlarged view of the area indicated by 1B in FIG. 1a.
- FIG. 2 is a front view of the machine which shows the second stage where one of the die faces operate.
- FIG. 3 is a cross-sectional view of the die-holding rotor device, in the operating position, according to the present invention.
- FIG. 4 is another cross-sectional view similar FIG. 3, but with the die-holding rotor device in an intermediate position when it rotates to change position.
- FIG. 5 is a perspective view of the rotating die
- FIG. 6 is a cross sectional view of a rotating die having six die faces
- FIG. 7 is a schematic view in perspective which shows the most prominent outer components of the rotating die.
- FIG. 8 is a schematic longitudinal section of the cylindrical tubular chamber axial to the axis of rotation of the above-mentioned die-holding rotor according to the present invention.
- the machine according to the present invention can be analyzed by evaluating three zones or sectors.
- the first sector is a feeding sector, in which is located a coil 1 of a continuous sheet of hard plastic material, with a certain thickness, such as those which are used to manufacture various objects which are light-weight and may be discarded after use.
- the second sector is an intermediate sector consisting of a frame 1, which supports the furnaces 3 and 4 for heating the plastic sheet 5, as well as the lateral pulling chains 6, the collecting means 7 for stacking the objects obtained, and the means 8 for tensioning the 6.
- the third sector which is where the dies operate, is formed by a frame mounted on four columns 9, which are connected to one another by crosspieces 10, in which the die-holding rotor device is located.
- the driving means which produce the rotation of the die-holding rotor, the displacements of the stacking collector, and the movements of the hydraulic cutters 11 and 12, are not shown, nor are the means which produce the circulation of cooling water and the pneumatic suction and expulsion circuits which the machine uses for its various operations.
- the control means which synchronize and arrange the movements is also not shown.
- the continuous sheet 5, for its feed is pulled by lateral pulling barbs 13 capable of perforating the sheet in its lateral edge zones.
- the continuous sheet 5, immediately after passing through the heating furnaces 3 and 4 is, under the conditions of heat, able to act as raw material for the thermoforming of objects.
- the mold is produced by thermoforming (as is explained below)
- the die-holding rotor and a first sheet section which was sent to the station, advance, rotating about the axis 15 of rotor 14 to now face the cooling station E.E.
- a second section of sheet which then follows, will face the above-mentioned E.M. molding zone.
- the first section of the sheet now faces the die-forming station E.T., where the objects or pieces already thermoformed with the sheet 5 are removed. This continues with the chain in its discard position, and the pieces thermoformed within the die are now die-formed or cut away. Also simultaneously, the following sheet sections of sheet 5, face the respective, previous stations. Finally, when the last rotation of the rotor or rotating die 14 is produced, its cycle ends in the station E.D. which consists of removing from the mold and expulsion. In this section of the process, the thermoformed and die-formed objects are removed from the die and are deposited in the stacking means 7. In the meantime, the sections of sheets 5, which follow behind, are sent into the respective stations that they face.
- the rotor 14 has, on its periphery, four faces 16 which are identical and parallel two by two, defining a die-holding cube 20, on which faces are detachably arranged female dies 17, which can have as many openings 18 as desired by the owner according to the number of objects that he wishes to manufacture and the desired production of the machine.
- the bores 16 are shared in common and are linked with the axis 15 of the rotor 14, which is cylindrical and hollow, and which is appropriately mounted in the columns 9 in order to be arranged in a position of rotation in the direction F indicated in FIGS. 1, 3, and 4.
- the die-holding rotor 14 has guides 19 of the gear type with teeth which embed in the chain, and while being fixed to the die-holding rotor, they are pulled with its own revolving motion.
- E.M. fluid can either be withdrawn from the duct 29 to deform the hot plastic sheet 5 or a hydraulic cutter 11 can be used.
- FIGS. 3 and 4 show in great detail the presence of the pneumatic cylinder 26 which produces, in a coordinated manner, the feed of the preformed sections 22 which are defined in a plate 23 which has openings 24 for the inlet of air in the direction of the openings 18 which give definitive formation to the objects 25.
- the objects 25 remain in their molds, still linked with the sheet 5 (see FIGS. 3 and 4).
- a cooling liquid is introduced by means of the inlet ducts 27 and valves 104 and is made to circulate in the body of the die 17, a cooling which is transferred to the objects 25.
- the liquid exits by another similar duct (not shown) towards the interior of the cylindrical axis 15, which can be seen in FIG. 8.
- the die-forming die In the die-forming station E.T. (FIGS. 2 and 3), when the hydraulic cutter 12 is in its position of maximum expansion, the die-forming die produces the cut and separation of the objects 25 from the sheet 5, and simultaneously, a pneumatic suction is performed by the ducts 29 and valves 105 on the objects 25, which keeps them held in the respective openings of the female die 17. It can be seen in these figures that the continuous sheet 5, in its outlet section in the direction of discard, has die-formed openings 30.
- the female die 17 faces the stacking device 7.
- pneumatic pressure is sent via the duct 29 and valve 105, and used for the removal and expulsion of the objects 25 from the mold and for assembling the objects in stacks.
- the stacking device 7 has means which produce displacements which are synchronized with the rotation of the die-holding rotor 14. These means are arranged in mutual contact with the die 17 when the rotor is in the operating position (FIG. 3), and then displaced in order to make it possible to move same when the rotor rotates 1/4 of a turn (FIG. 4).
- positioning means such as those indicated by reference number 31 in FIGS. 3 and 4.
- the positioning means consist of rocker arms which rotate with respect to an axis 32 by means of a hydraulic cylinder 33. In the position in FIG. 3, the positioning means is arranged with the rotor in its exact position, while in the position in FIG. 4 (the means) are open in order to allow passage when the rotor 14 is rotated.
- the machine can use pairs of these positioning rocker arms since they may be located on adjacent faces 16 or opposing faces 16.
- FIG. 6 it can be seen schematically how the distribution of air and water, which are use din the various processes described above, is organized in the interior of the cylindrical axis 25.
- the cold water inlet which is linked by the connector 35 with the cold water inlet duct 27 to the die 17, is indicated by the reference 34.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AR32376092 | 1992-11-26 | ||
| AR323.760 | 1992-11-26 | ||
| AR323.208 | 1993-11-04 | ||
| AR32650893 | 1993-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US5451157A true US5451157A (en) | 1995-09-19 |
Family
ID=25591015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US08/157,934 Expired - Fee Related US5451157A (en) | 1992-11-26 | 1993-11-24 | Machine for manufacturing objects made of plastic material by means of thermoforming |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5451157A (it) |
| JP (1) | JPH06278202A (it) |
| DE (1) | DE4340420A1 (it) |
| IT (1) | IT1261362B (it) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6537477B1 (en) * | 1998-04-03 | 2003-03-25 | Giorgio De Nichilo | Thermoforming station and method with a quick cooling system for the thermoformed articles |
| US20070034629A1 (en) * | 2003-10-22 | 2007-02-15 | Mazzarolo Ivonis M | Method of manufacturing thermoformed plastic articles and drink cup lid made by such method |
| US20090315210A1 (en) * | 2008-06-20 | 2009-12-24 | Linares Miguel A | Production assembly and process for mass manufacture of a thermoplastic pallet incorporating a stiffened insert |
| US20100007065A1 (en) * | 2008-07-11 | 2010-01-14 | Raphael Reinhold | Device for use in the manufacture of fiber-reinforced components |
| US20100255137A1 (en) * | 2003-10-23 | 2010-10-07 | Mazzarolo Ivonis M | Method of Manufacturing Thermoformed Plastic Articles and Drink Cup Lid made by such Method |
| US8438981B2 (en) | 2008-06-20 | 2013-05-14 | Oria Collapsibles, Llc | Pallet design with buoyant characteristics |
| US8522694B2 (en) | 2008-06-20 | 2013-09-03 | Oria Collapsibles, Llc | Structural supporting pallet construction with improved perimeter impact absorbing capabilities |
| US8628319B2 (en) | 2002-07-29 | 2014-01-14 | Ivma Holdings Company | Apparatus for manufacturing thermoformed plastic articles |
| US8701569B2 (en) | 2008-06-20 | 2014-04-22 | Oria Collapsibles, Llc | Pallet design with structural reinforcement |
| EP3069857A3 (en) * | 2015-03-17 | 2016-10-12 | Penso Holdings Ltd. | Method and apparatus for production of carbon fibre components |
| CN108582649A (zh) * | 2018-03-26 | 2018-09-28 | 宁波力松注塑科技有限公司 | 一种注塑机用的切换式复合模具 |
| CN109352964A (zh) * | 2018-10-24 | 2019-02-19 | 东莞广泽汽车饰件有限公司 | 一种车用膜片吸塑件的模内裁切系统 |
| CN114379067A (zh) * | 2022-02-18 | 2022-04-22 | 昆山宝鑫瑞包装科技有限公司 | 一种片件吸塑成型装置、加工系统及加工方法 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPG20100029A1 (it) * | 2010-05-05 | 2011-11-06 | Mario Battistelli | Macchina rotativa pluristazione per la produzione di oggetti termoformati, con basso consumo di materia prima, alta flessibilita' sul prodotto da termoformare e ottimizzazione dei tempi morti di produzione. |
| CN102632604B (zh) * | 2012-04-14 | 2014-06-25 | 郑永勤 | 热成型机 |
| CN102825629A (zh) * | 2012-09-12 | 2012-12-19 | 科思泰半导体配件(苏州)有限公司 | 载带真空成型机 |
| EP3165346B1 (de) * | 2013-09-30 | 2018-11-14 | Kiefel GmbH | Anlage und verfahren zum thermoformen einer folie zu einer vielzahl produkte |
| ITUA20163159A1 (it) | 2016-05-04 | 2017-11-04 | Mondini S R L | Apparecchiatura per la termoformatura di contenitori plastici |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3837782A (en) * | 1971-12-15 | 1974-09-24 | Filper Corp | Apparatus for forming containers |
| US4057382A (en) * | 1974-08-05 | 1977-11-08 | Mitsubishi Monsanto Kasei Kabushiki Kaisha | Apparatus for air-pressure forming thermoplastic resin sheets |
| US4086046A (en) * | 1975-10-24 | 1978-04-25 | Numol Corporation | Wax mould apparatus |
| US4360334A (en) * | 1979-10-02 | 1982-11-23 | Adolf Illig Gmbh & Co. | Thermoforming machine |
| US4608009A (en) * | 1984-05-23 | 1986-08-26 | John Brown Inc. | Thermoforming equipment for differential pressure forming products in thermoplastic material |
| US4740342A (en) * | 1986-08-15 | 1988-04-26 | Personal Products Company | Thermoforming flexible plastic foam shells |
| US5167969A (en) * | 1991-04-09 | 1992-12-01 | Demaio Jr Joseph T | Split frame for rotary vacuum mold unit |
-
1993
- 1993-11-24 US US08/157,934 patent/US5451157A/en not_active Expired - Fee Related
- 1993-11-26 JP JP5321219A patent/JPH06278202A/ja active Pending
- 1993-11-26 IT ITTO930896A patent/IT1261362B/it active IP Right Grant
- 1993-11-26 DE DE4340420A patent/DE4340420A1/de not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3837782A (en) * | 1971-12-15 | 1974-09-24 | Filper Corp | Apparatus for forming containers |
| US4057382A (en) * | 1974-08-05 | 1977-11-08 | Mitsubishi Monsanto Kasei Kabushiki Kaisha | Apparatus for air-pressure forming thermoplastic resin sheets |
| US4086046A (en) * | 1975-10-24 | 1978-04-25 | Numol Corporation | Wax mould apparatus |
| US4360334A (en) * | 1979-10-02 | 1982-11-23 | Adolf Illig Gmbh & Co. | Thermoforming machine |
| US4608009A (en) * | 1984-05-23 | 1986-08-26 | John Brown Inc. | Thermoforming equipment for differential pressure forming products in thermoplastic material |
| US4740342A (en) * | 1986-08-15 | 1988-04-26 | Personal Products Company | Thermoforming flexible plastic foam shells |
| US5167969A (en) * | 1991-04-09 | 1992-12-01 | Demaio Jr Joseph T | Split frame for rotary vacuum mold unit |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6537477B1 (en) * | 1998-04-03 | 2003-03-25 | Giorgio De Nichilo | Thermoforming station and method with a quick cooling system for the thermoformed articles |
| US8282382B2 (en) * | 2002-07-29 | 2012-10-09 | Ivma Holdings Company | Method of manufacturing thermoformed plastic articles and drink cup lid made by such method |
| US8628319B2 (en) | 2002-07-29 | 2014-01-14 | Ivma Holdings Company | Apparatus for manufacturing thermoformed plastic articles |
| US20070034629A1 (en) * | 2003-10-22 | 2007-02-15 | Mazzarolo Ivonis M | Method of manufacturing thermoformed plastic articles and drink cup lid made by such method |
| US20100255137A1 (en) * | 2003-10-23 | 2010-10-07 | Mazzarolo Ivonis M | Method of Manufacturing Thermoformed Plastic Articles and Drink Cup Lid made by such Method |
| US8038432B2 (en) * | 2003-10-23 | 2011-10-18 | Mazzarolo Ivonis M | Method of manufacturing thermoformed plastic articles and drink cup lid made by such method |
| US8522694B2 (en) | 2008-06-20 | 2013-09-03 | Oria Collapsibles, Llc | Structural supporting pallet construction with improved perimeter impact absorbing capabilities |
| US20090315210A1 (en) * | 2008-06-20 | 2009-12-24 | Linares Miguel A | Production assembly and process for mass manufacture of a thermoplastic pallet incorporating a stiffened insert |
| US8420179B2 (en) | 2008-06-20 | 2013-04-16 | Orin Collapsibles, LLC | Spray applicating process and production assembly for manufacturing a pallet |
| US8438981B2 (en) | 2008-06-20 | 2013-05-14 | Oria Collapsibles, Llc | Pallet design with buoyant characteristics |
| US8167605B2 (en) * | 2008-06-20 | 2012-05-01 | Oria Collapsibles, Llc | Production assembly and process for mass manufacture of a thermoplastic pallet incorporating a stiffened insert |
| US8701569B2 (en) | 2008-06-20 | 2014-04-22 | Oria Collapsibles, Llc | Pallet design with structural reinforcement |
| US20100007065A1 (en) * | 2008-07-11 | 2010-01-14 | Raphael Reinhold | Device for use in the manufacture of fiber-reinforced components |
| US8556617B2 (en) * | 2008-07-11 | 2013-10-15 | Broetje Automation Gmbh | Device for use in the manufacture of fiber-reinforced components |
| EP3069857A3 (en) * | 2015-03-17 | 2016-10-12 | Penso Holdings Ltd. | Method and apparatus for production of carbon fibre components |
| GB2537982B (en) * | 2015-03-17 | 2019-11-13 | Penso Holdings Ltd | Method and apparatus for production of carbon fibre components |
| US10668649B2 (en) | 2015-03-17 | 2020-06-02 | Penso Holdings Ltd | Method and apparatus for production of carbon fiber components |
| CN108582649A (zh) * | 2018-03-26 | 2018-09-28 | 宁波力松注塑科技有限公司 | 一种注塑机用的切换式复合模具 |
| CN109352964A (zh) * | 2018-10-24 | 2019-02-19 | 东莞广泽汽车饰件有限公司 | 一种车用膜片吸塑件的模内裁切系统 |
| CN109352964B (zh) * | 2018-10-24 | 2023-09-29 | 东莞广泽汽车饰件有限公司 | 一种车用膜片吸塑件的模内裁切系统 |
| CN114379067A (zh) * | 2022-02-18 | 2022-04-22 | 昆山宝鑫瑞包装科技有限公司 | 一种片件吸塑成型装置、加工系统及加工方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| ITTO930896A1 (it) | 1995-05-26 |
| DE4340420A1 (de) | 1994-10-20 |
| JPH06278202A (ja) | 1994-10-04 |
| IT1261362B (it) | 1996-05-20 |
| ITTO930896A0 (it) | 1993-11-26 |
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